Compress Image to 100 KB Online

    Reduce a JPG, PNG or WebP photo to under 100 KB in your browser. Useful for document scans, profile photos and email attachments.

    Target size

    Runs in your browser — your files are never uploaded.

    How to use the Compress Image to 100 KB

    1. The 100 KB target is already selected.
    2. Drop your image or tap to choose it from your phone or computer.
    3. Wait a moment while the tool finds the best quality under 100 KB.
    4. Check the preview and size, then tap Download.

    One hundred kilobytes is a common limit for scanned documents such as certificates, ID cards and caste or income certificates on application portals. It is also a practical size for profile photos and for images you want to send by email without slowing it down.

    Tips for a readable 100 KB scan

    • Scan or photograph the document flat, straight and in good light; shadows and tilted pages waste file size.
    • Crop away the table or background around the page.
    • Zoom into the downloaded file and confirm that small text, seals and signatures are still readable. If not, crop tighter and compress again.
    • If the portal wants a PDF instead of an image, convert with the image to PDF tool and then use the PDF compressor.

    Check the exact limit on the form itself, because different documents on the same portal can have different limits.

    Frequently asked questions

    Will the result be exactly 100 KB?

    It will be just under 100 KB, never above it. Portals usually reject files that are even slightly over the limit.

    Is my photo uploaded anywhere?

    No. The image is compressed in your browser and never leaves your device.

    My photo is blurry at 100 KB. What can I do?

    Crop the photo tightly first, or resize it to the pixel size the form asks for with the photo and signature resizer, then compress again.

    Can I compress several images to this size?

    Yes. Add up to 20 images and each will be compressed to the same target.

    Where can I check the exact size my form needs?

    Always use the size given in the official notification or on the upload page of the form. Requirements change between years and between organisations.

    Related free tools

    Image CompressorPick 10, 20, 50, 100, 200 or 500 KB (or any size) and get the best-quality JPG that fits. Up to 20 images at once.Photo & Signature ResizerResize and crop a photo or signature to exact pixels or centimetres, with a maximum size in KB, and save it as JPG.PDF CompressorShrink a PDF to a target size for upload forms and email. Pages are converted to images, so text will no longer be selectable.Image to PDFCombine JPG or PNG photos into one PDF, in the order you choose, without uploading them.